Black plate (37,1)Cadillac STS Owner Manual - 2011WARNING: (Continued)death. Never run the engine in an enclosed areathat has no fresh air ventilation. For moreinformation, see Engine Exhaust on page 3‑36.{ WARNING:It can be dangerous to get out of the vehicle if theautomatic transmission shift lever is not fully inP (Park) with the parking brake firmly set. Thevehicle can roll. Do not leave the vehicle when theengine is running unless you have to. If you haveleft the engine running, the vehicle can movesuddenly. You or others could be injured. To besure the vehicle will not move, even when you areon fairly level ground, always set the parkingbrake after you move the shift lever to P (Park).Follow the proper steps to be sure the vehicle will notmove. See Shifting Into Park on page 3‑34.If parking on a hill and pulling a trailer, see Towing aTrailer on page 5‑31.MirrorsAutomatic Dimming Rearview MirrorThe vehicle may have an inside rearview mirror withautomatic dimming and OnStar ® controls; or it mayhave OnStar ® and a compass display. See the OnStar ®owner guide and/or Compass on page 3‑38 for moreinformation.O (On/Off): Press to turn the dimming feature on or off.Automatic Dimming Mirror OperationAutomatic dimming reduces the glare of lights frombehind the vehicle. The dimming feature comes on andthe indicator light illuminates each time the vehicle isstarted.Cleaning the MirrorDo not spray glass cleaner directly on the mirror. Use asoft towel dampened with water.3-37